| 主权项 |
1. An absorbent article comprising:
a) a chassis having i) a topsheet, ii) a backsheet comprising an outer cover non-woven material, and iii) an absorbent core disposed between the topsheet and the backsheet; and b) a fastening system, the fastening system having a male fastener and a female fastening material, wherein the male fastener is joined to the at least one elastically elongatable panel, and the male fastener includes a plurality of bidirectional micro-sized hooks, wherein:
each of the hooks has an overall hook height that is greater than or equal to one third of the overall thickness of the female fastening material but less than or equal to twice the overall thickness of the female fastening material;each of the hooks includes a cap, and each of the caps has a vertical engagement effective area that:
has an overall shape with at least two sides that are substantially parallel, has a width-to-thickness aspect ratio that is greater than or equal to 1 but less than or equal to 2, andis greater than or equal to 40,000 square micrometers but less than or equal to 120,000 square micrometers; andeach of the caps has an overall cap height that is:
less than or equal to one third of the thickness of the overall thickness of the female fastening material, andless than or equal to 120 micrometers; andeach of the hooks has two arms, at least one of the arms having an underside, the underside including a recessed portion, the recessed portion having a deepest recessed depth that is greater than or equal to 40% of the overall fiber cross-sectional dimension and less than or equal to 200% of the overall fiber cross-sectional dimension; and wherein the female fastening material is integral with the outer cover non-woven and the female fastening material comprises a section of a nonwoven web forming surface approximating a plane, a machine direction and a cross direction perpendicular to the machine direction, the nonwoven web formed predominately of polymeric fibers and comprising a series of one or more consolidating bonds impressed on the surface, the one or more consolidating bonds having at least one bond shape; wherein the series is repeated to form a pattern of consolidating bonds; wherein the series is repeated in at least four rows extending predominately in the cross direction, and the series is repeated in at least four columns extending predominately in the machine direction; and wherein the bond shape has a perimeter with a greatest measurable length and a greatest measurable width, and the perimeter:
has a convex portion;has an aspect ratio of the greatest measurable length to the greatest measurable width of at least 2.5; andis oriented such that a line intersecting the perimeter along which the greatest measurable length exists intersects an axis lying on the surface along the machine direction to form an angle of between 1 degree and 40 degrees. |
